Concealed-hinge stove-door.



.L. SGRUGGS.

GONGEALED HINGE STOVE DOOR.

APPLICATION FILED DBO. 30, 1911.

1,064,338, Patented. June 10, 1913.

v UNITED STATES PATENT OFFI I-OYD S CRUGGS, OF ST. LOUIS, MISSOURI,ASSIGNOR T COPPER GLAD MAIiLEABLE RANGE COMPANY, OF ST. LOUIS, MISSOURI,A CORPORATION OF NEBRASKA.

GONCEALED-HINGE- STOVE-DOOR.

Specification of Letters Patent. Patented June-10, 19.13,

Application filed December 30, 1911. Serial No. 668,620.

and useful Improvement in Concealed- .Hinge Stove-Doors, of which thefollowing is a full, clear, and exact description, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to stove doors, and is an improvement on theconcealed hinge stove door described in my prior United States PatentNo. 1,007,147, dated Oct. 31, 1911. B

One object of my present invention is to provide a concealed hinge stovedoor that can be manufactured cheaplyand which is not liable to break orget out of order.

Another object is to provide a-concealed hinge stove door that can befitted quickly and easily to the stove on which it is used.

And still another object is to provide. a door of the character referredto which is so designed that there is no possibility of its sticking orbecoming jammed in case the person who operates the door pulls it in adirection tending to cause the lower edge of the door to move away fromthe door frame on the stove.

Other objects .and' desirable features of my invention will behereinafter pointed out.

I have herein shown my inventionembodied in a door for the warmingcompartmentpr oven of a cooking range but, it will,

of course, be understood that the invention is not limited to such doorsfor various other doors on the stove could be constructed inthe samemanner without departing from the spirit of my invention.

Figure 1 of the drawings is a front elevational view of a portion of acooking range whose warming ovens or compartments are equipped withconcealed hinge doors constructed in accordance with my invention; Fig.2 is a vertical sectional view taken on the line 22 of Fig. 1, lookingin the di-' 'rection indicated by the arrows Fig. 3 is a similar viewshowing the door raised sli htly so as to disengage 'the hooks orcatches t ereon from the shoulders on the door frame with which saidhooks cooperate; Fig. 4 is a similar view showing the door in its openposition; Fig. 5 is a vertical sectional view taken on the line 5--5 ofFig. 2,.looking in the direction indicated by the arrows; Fig. 6 is avertical sectional view taken on the line 6-6 of Fig. 5, looking in thedirection indlcated by' the arrows; and Fig. 7 is a sectional viewsimilar to Fig. 5 illustrating a slight modification of my invention.

Referring to the drawings which illustrate the preferred form of myinvention, A

designates a stove door whose lower edge portion is hinged to a doorframe B The door A is so proportioned that it laps over the portions ofthe-door frame B that lie adjacent the edges of the door/opening in theframe, and the hinges on which the door is mounted are so designed andarranged that they are completely concealed or hiddenfrom view when thedoor is in'its closed position. In the form of my invention hereinshown, a pair of hinge members .1 j which consist of downwardly curvedarms,'project inwardly from the lower edge of the door through openings2 in the door frame and engage cooperating hinge members .3 whichconsist of legs or projections arranged on the inner side of the doorframe B at the lower ends of the openings 2 in said door frame. members3 on which the hinge members 1 on the door travel, are curved, and arepreferably concentric with the point where the lower edge of the doorterminates when the door is in its closed position, and theunder sidesof the hinge members or arms 1 on the door are also concentric with thelower edge of the door and are of approximately 'the same radius as thecurved surfaces of .the

stationary hinge members 3 so that they will Slide over the convexsurfaces of said stationary hinge members without changing the axisabout which the. door revolves.

- The door A is provided with hooks 4.- that engage shoulders or lugs 5on the door frame B so as to hold the door in its closed position, andas it isnecessary to raise the door to disengage the hooks 4 from theircooperating shoulderson the door frame, as

The surfaces of the hinge shown in Fig. 3, when it is desired to open Iby means of sto s 6 on the' arms 1 that strike against stationaryshoulders 7 consis t' ing of portions of the door' frame B, said stopsbeing herein shown as integral w1th the arms 1.

To eliminate the possibility of the door sticking orjamming in case acareless personpulls the door in a direction tending to move the loweredge of the door u wardly and outwardly away from the door 'ame B duringthe operation of closing the door I have provided the hinge members 1 onthe door with auxiliary stops or supplemental stops 6 that projectdownwardly below the lower'e'dges of the openings 2 the doorframe andlie behindthe curved hinge members 3 when the door is open, as shown inFig. 4, the stops 6 projecting upwardly above the upper edges of saidopenings. The stationary members 3 on the door frame are so proportionedthat there is suflicient clearance in a vertical line between the sameand the auxiliary stops 6 on the hinge members 1 on the door to permitthe door to be raised far enough to disengage the hooks 4 on the doorfrom their'cooperating shoulders 5 on the door frame when the door is ina vertical position, as shown in Figs. 2 and 3,-but said auxiliary stops6 overcome any tendency of the door to pullaway from the door frame andthus bind or jam when the door is moved from its open'into its closedposition on account of the fact that the said auxiliary stops 6 arecurved and project downwardly behind the hinge members 3 on the doorframe.

The door is preferably held in operative position with relation to thedoor frame by means'of a locking-device 8 on the inside of the doorframe, as shown'in Fig. 5, that cooperates with one of the hinge members1 on the door to prevent the door from moving or shifting'laterally,said locking device consisting of a plate that is detachably connectedto the door frame B by means of one or more suitable fastening devices9. After the hinge members 1 on the door have been inserted in theopenings 2 in the door frame the locking device 8 is connected to thedoor frame so as to prevent the hin e members 1 from shifting laterallyout o engagement with the statlonary hinge members 3 on the door framewith which they cooperate. The openings 2 can be formed in the sideedges of the door frame, as shown in Fig. 5, or, if desired, openings 2of the form shown in Fig. 7 can be formed in the door frame somedistance inwardly from the side edges of same. Each of the openings 2 isdeep enough or high enough at one point to permit the coiiperating hingemember on the door to be introduced into same, and said deep portioncommunicates with a lateral offset portion whose depth is approximatelythe same-as the extreme width of the 00- operating hinge member 1 at apoint just in front of the stops 6 and 6* on the inner end of said hingemember. The hinge members 1"on the door are introduced into the deepportions of the openings 2' in the door frame and the door is thereaftershifted laterally as shown in Fig. 7 so that said hinge members will bepositioned in the offset reduced portions of the openings 2". Finallythe locking device 8 1s connected to the s'dOOI' frame as shown in Fig.7 so as to prevent the hinge members 1 on the doorframe from movinglaterally into the deep or high portions of the openings 2.

One advantage of a concealed hinge stove door of the constructionabove-described is that it can be fitted quickly and easily to the doorframe on which it is mounted.- This is due to the fact that the meanswhich looks thedoor in operative position is separate and distinct fromthe shoulders 7 on the door frame which cooperate with the stops 6 onthe hin e members on the door to limit the outward movement of the doorand therefore does not have to be arranged in position until after thedoor has been fitted.

If the devices that held the door in operative position in the frame,also cooperated with the hinge members on the door to limit the outwardmovement of the door it would be necessary to arrange said devices inoperative position while the door was being fitted- If the workman foundthat the door did not fit properly after the door, the door-frame, andthe door-retaining devices had been assembled it would be necessary toremove the door-retaining devices in order to disassemble the door andframe and file off the surfaces that did not fit accurately.

Consequently, a great deal of time might be consumed in fitting the doorto its frame and this, of course, would add greatly to the cost ofmanufacturing the structure.

The structure described in my present application is so designed thatthe workman can fit the door to the frame without arranging the lockingdevice 8 in operative position so that no time is wasted in case it isnecessary to remove the door several times during the work of fitting itto the frame.

Another advantage of my improved construction is that only a singledevice. 8 is employedfor locking the door in operative position; andstill another advantage of such a structure is that it is exceptionallystrong and is not liable to get out of order, this being due to the factthat the door-frame B is provided with integral portions 7 thatoooperate with the stops on the hinge members on the door to limit theoutward movement what I claim as new and desire to secure by LettersPatent is:

1. In a stove, a door frame provided with openings and with hingemembers that are located adjacent said openings, a door that operates ina vertical plane and which completely hides said openings from view whenit is closed, and cooperating hinge members projecting inwardly fromsaid door throughsaid openings and having curved surfaces which areconcentric with the axis about which the door revolves when it isbeingopened or closed, the hinge members on the door traveling .on thehinge members on the door frame and each hinge member on the door beingprovided with a stop that strikes against the door frame and thus limitsthetoutward movement of the door and also with means separate anddistinct from said stop for preventing the-lower edge of the door frommoving outwardly away from the door frame in case the door is pulledoutwardly and upwardly during the operation of moving it from its opento its closed position.

2. In a structure of the character described, a door frame provided withopenings and with hinge members adjacent said openings that havearc-shaped surfaces, a door that operates in a vertical plane and whichcompletely conceals said openings from view when the door is closed,curved arms on the lower edge portion of the door projecting inwardlythrough'said openings and having cooperating arc-shaped surfaces, saidcurved arms bein provided at their inner ends withstops w ich are sodesigned that they lap over the hinge members on the door frame andproject downwardly below the lower edges of the openings in the doorframe when the door is in its open position,

thereby preventing the loweredge of the door from pulling away from theframe.

3. In a stove,'a door frame provided with openings and with hingemembers adjacent said openings that have arc-shaped surfaces, a doorthat swings in a vertical plane and which completely conceals saidopeningsfrom view when the door is closed, hinge members on the loweredge of the door pro? vided with cooperating arc-shaped surfacesarranged in sliding engagement with the hinge members on the frame, thehinge members on the door projecting inwardly through the openings insaid door frame and pro-- vided at their inner ends with stops whichstrike against the door frame and thus limit the outward movement of thedoor, and a locking device on the door frame' arranged at one side ofone of the hinge members on the door so as to prevent the door fromshifting laterally or sidewise far enough to carry the hinge membersthereon out of engagement with the cooperating hinge members on theframe.

4. In a stove, a door frame provided with opemngs having reducedportions, a downwardly swinging door that completely con ceals saidopenings from view when. it is closed, curved hinge members projectinginwardly from the lower edge of the door and normally lying in thereduced portions of the openings in the door frame, and a 'locking'device on the door frame that cooperates with one of the hingemembers on the door to hold said members in the reduced portions ofthe'openings in the door frame.

5. In a stove, a doorframeprovided with openings and with integralshoulders, said frame also having hinge members located it is closed,curved hinge members projecting inwardly from the door through saidopenings and provided with stops that strike against the integralshoulders on the door frame and thus limit the outward movement of thedoor, and a locking device on the door frame arranged alongside of oneof the hinge members on the door and projecting into the opening in theframe through which said member passes so as to prevent the door fromshifting relatively to the door frame, the hinge members on the doorbeing provided at their rear ends with stops which lap over the hingemembers on the door frame and project downwardly below the lower edgesof the openings in the door frame when the door is in its open position.In testimony whereof I hereunto afiix my signature in the thistwenty-secon day of December, 1911.

' LOYD SCRUGGS.

Witnesses:

' TELLS L. CHURCH, GEORGE BAKEWELL,

adjacent said openings, a door that completely hides said openings fromview when presence of two witnesses,

